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Periodic Bedrock Ridges at Oxia Planum and Chryse Planitia, Mars: Evidence for widespread aeolian erosion of an ancient surface by regional paleowinds

Fawdon, Peter; Grindrod, Peter M.; Balme, Matthew R. +4 more

Periodic Bedrock Ridges (PBRs) are repeating, symmetrical, wind-transverse, bedrock-abraded linear ridges that occur on Mars as parallel sets. Here, we extend our previous survey of PBRs at Oxia Planum - the landing site of ESA's ExoMars Rosalind Franklin rover - to include three additional sites along the margins of the circum-Chryse basin to und…